Doxygen Source Code Documentation
rate.c File Reference
#include <sys/times.h>#include "all.h"#include "mtypes.h"#include "bitio.h"#include "frames.h"#include "prototypes.h"#include "param.h"#include "mheaders.h"#include "fsize.h"#include "postdct.h"#include "mpeg.h"#include "parallel.h"#include "dct.h"#include "rate.h"Go to the source code of this file.
Defines | |
| #define | MAX_BIT_RATE 104857600 |
| #define | MAX_BUFFER_SIZE 16760832 |
| #define | DEFAULT_BUFFER_SIZE 327680 |
| #define | DEFAULT_VBV_FULLNESS 3 |
| #define | DEFAULT_PICT_RATE_CODE 5 |
| #define | DEFAULT_PICT_RATE 30 |
| #define | MAX_VBV_DELAY 32768 |
Functions | |
| int initGOPRateControl | _ANSI_ARGS_ ((void)) |
| void checkBufferFullness | _ANSI_ARGS_ ((int count)) |
| void checkSpatialActivity | _ANSI_ARGS_ ((Block blk0, Block blk1, Block blk2, Block blk3)) |
| void incNumBlocks | _ANSI_ARGS_ ((int num)) |
| void updateVBVBuffer | _ANSI_ARGS_ ((int frameBits)) |
| int BlockExperiments | _ANSI_ARGS_ ((int16 *OrigBlock, int16 *NewBlock, int control)) |
| int | initRateControl () |
| int | initGOPRateControl () |
| void | targetRateControl (frame) MpegFrame *frame |
Variables | |
| int | RateControlMode = VARIABLE_RATE |
| int32 | buffer_size = DEFAULT_BUFFER_SIZE |
| int32 | bit_rate = -1 |
| int32 | VBV_delay = 0 |
| int32 | VBV_buffer = 0 |
| int32 | bufferFillRate = 0 |
| int32 | frameDelayIncrement = 0 |
| int | Xi |
| int | Xp |
| int | Xb |
| int | Si |
| int | Sp |
| int | Sb |
| float | Qi |
| float | Qp |
| float | Qb |
| int | Ti |
| int | Tp |
| int | Tb |
| int | current_Tx |
| int | GOP_X = 0 |
| int | GOP_I = 0 |
| int | GOP_P = 0 |
| int | GOP_B = 0 |
| int | Nx = 0 |
| int | Ni = 0 |
| int | Np = 0 |
| int | Nb = 0 |
| int | rc_numBlocks = 0 |
| int | rc_totalQuant = 0 |
| int | rc_bitsThisMB |
| int | rc_totalMBBits |
| int | rc_totalFrameBits |
| int | rc_totalOverheadBits = 0 |
| int | RC_MB_SAMPLE_RATE = 0 |
| float | Ki = .7 |
| float | Kp = 1 |
| float | Kb = 1.4 |
| int | rc_R |
| int | rc_G |
| int | d0_i |
| int | d0_p |
| int | d0_b |
| int | lastFrameVirtBuf |
| int | currentVirtBuf |
| int | MB_cnt = -1 |
| int | rc_Q |
| int | reactionParameter |
| int | act_j |
| float | N_act |
| int | avg_act |
| int | total_act_j |
| int | var_sblk |
| int | P_mean |
| int | mquant |
| int | Qscale |
| char * | Frame_header1 = " Fm # Bit GOP V " |
| char * | Frame_header2 = " # type MBs Alloc left Ni Np Nb N_act buff Q_rc Qscale" |
| char * | Frame_header3 = "---- - ---- ------ ------- -- -- -- ----- ------ ---- ----" |
| char * | Frame_trailer1 = " avg virt % GOP % VBV" |
| char * | Frame_trailer2 = " Sx Qx Xx act N_act buffer alloc left left buf delay" |
| char * | Frame_trailer3 = "------ --.-- ------- --- --.-- ------- --- ------- --- ------- ------" |
| char * | MB_header1 = "MB# #bits Q mqt Dj Q_j actj N_act totbits b/MB %alloc %done" |
| char * | MB_header2 = "--- ----- -- --- ------ --- ----- --.-- ------ ---- --- ---" |
| char | rc_buffer [101] |
| char * | framePattern |
| int | framePatternLen |
| Block | blk0 |
| Block | blk1 |
| Block | blk2 |
| Block | blk3 |
Define Documentation
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Function Documentation
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Definition at line 312 of file rate.c. References avg_act, bit_rate, buffer_size, d0_b, d0_i, d0_p, DBG_PRINT, GOP_B, GOP_I, GOP_P, GOP_X, mquant, Nb, Ni, Np, Nx, rc_G, rc_Q, rc_R, Xb, Xi, and Xp. Referenced by initRateControl().
00313 {
00314 DBG_PRINT(("\tInitializing new GOP\n"));
00315
00316 Nx = GOP_X;
00317 Ni = GOP_I;
00318 Np = GOP_P;
00319 Nb = GOP_B;
00320
00321 rc_R += rc_G;
00322
00323 DBG_PRINT(("\tbufsize: %d, bitrate: %d, pictrate: %d, GOP bits: %d\n",
00324 buffer_size, bit_rate, frameRateRounded, rc_R));
00325 DBG_PRINT(("\tXi: %d, Xp: %d, Xb: %d Nx: %d, Ni: %d, Np: %d, Nb: %d\n",
00326 Xi, Xp, Xb, Nx,Ni,Np,Nb));
00327 DBG_PRINT(("\td0_i: %d, d0_p: %d, d0_b: %d, avg_act: %d, rc_Q: %d, mquant: %d\n",
00328 d0_i, d0_p, d0_b, avg_act, rc_Q, mquant));
00329 return 1;
00330 }
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Definition at line 218 of file rate.c. References avg_act, bit_rate, buffer_size, bufferFillRate, d0_b, d0_i, d0_p, DBG_PRINT, frameDelayIncrement, framePattern, framePatternLen, GOP_B, GOP_I, GOP_P, GOP_X, initGOPRateControl(), Kb, Kp, lastFrameVirtBuf, mquant, N_act, RateControlMode, rc_bitsThisMB, rc_G, rc_numBlocks, rc_Q, rc_R, rc_totalFrameBits, rc_totalMBBits, rc_totalOverheadBits, rc_totalQuant, reactionParameter, VARIABLE_RATE, VBV_buffer, VBV_delay, Xb, Xi, and Xp.
00219 {
00220 int index;
00221 int result;
00222
00223 DBG_PRINT(("\tInitializing Allocation Data\n"));
00224
00225 #ifdef RC_STATS_FILE
00226 RC_FILE = fopen("RC_STATS_FILE", "w");
00227 if ( RC_FILE == NULL) {
00228 DBG_PRINT(("\tOpen of RC file failed, using stderr\n"));
00229 RC_FILE = stderr;
00230 fprintf(RC_FILE, "\tOpen of RC file failed, using stderr\n");
00231 fflush(RC_FILE);
00232 }
00233 #endif
00234
00235 /* Initialize Pattern info */
00236 GOP_X = framePatternLen;
00237 for ( index = 0; index < framePatternLen; index++ ) {
00238 switch( framePattern[index] ) {
00239 case 'i':
00240 GOP_I++;
00241 break;
00242 case 'p':
00243 GOP_P++;
00244 break;
00245 case 'b':
00246 GOP_B++;
00247 break;
00248 default:
00249 printf("\n\tERROR rate.c - BAD PATTERN!\n");
00250 RateControlMode = VARIABLE_RATE;
00251 return (0);
00252 }
00253 }
00254 if (GOP_X != (GOP_I + GOP_P + GOP_B )) {
00255 printf("\n\tERROR rate.c - Pattern Length Mismatch\n");
00256 RateControlMode = VARIABLE_RATE;
00257 return (-1);
00258 }
00259
00260 /* Initializing GOP bit allocation */
00261 rc_R = 0;
00262 rc_G = (bit_rate * GOP_X/frameRateRounded);
00263
00264 /* Initialize the "global complexity measures" */
00265 Xi = (160 * bit_rate/115);
00266 Xp = (60 * bit_rate/115);
00267 Xb = (42 * bit_rate/115);
00268
00269 /* Initialize MB counters */
00270 rc_totalMBBits= rc_bitsThisMB= rc_totalFrameBits=rc_totalOverheadBits = 0;
00271 rc_numBlocks = rc_totalQuant = 0;
00272
00273 /* init virtual buffers */
00274 reactionParameter = (2 * bit_rate / frameRateRounded);
00275 d0_i = (10 * reactionParameter / 31);
00276 d0_p = (Kp * d0_i);
00277 d0_b = (Kb * d0_i);
00278
00279 lastFrameVirtBuf = d0_i; /* start with I Frame */
00280 rc_Q = lastFrameVirtBuf * 31 / reactionParameter;
00281
00282 /* init spatial activity measures */
00283 avg_act = 400; /* Suggested initial value */
00284 N_act = 1;
00285
00286 mquant = rc_Q * N_act;
00287
00288 frameDelayIncrement = (90000 / frameRateRounded); /* num of "delay" units per frame */
00289 bufferFillRate = bit_rate / frameRateRounded; /* VBV buf fills at constant rate */
00290 VBV_buffer = buffer_size;
00291 DBG_PRINT(("\tVBV- delay: %d, fill rate: %d, delay/Frame: %d units, buffer size: %d\n",
00292 VBV_delay, bufferFillRate, frameDelayIncrement, buffer_size));
00293
00294 result = initGOPRateControl();
00295
00296 return result;
00297 }
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Variable Documentation
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Definition at line 154 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 84 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 83 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 90 of file rate.c. Referenced by initRateControl(). |
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Definition at line 140 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 138 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 139 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 91 of file rate.c. Referenced by initRateControl(). |
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Definition at line 183 of file rate.c. Referenced by initRateControl(). |
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Definition at line 184 of file rate.c. Referenced by initRateControl(). |
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Definition at line 109 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 107 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 108 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 106 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 131 of file rate.c. Referenced by initRateControl(). |
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Definition at line 130 of file rate.c. Referenced by initRateControl(). |
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Definition at line 142 of file rate.c. Referenced by initRateControl(). |
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Definition at line 160 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 153 of file rate.c. Referenced by initRateControl(). |
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Definition at line 114 of file rate.c. Referenced by extract_assign_directions(), and initGOPRateControl(). |
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Definition at line 112 of file rate.c. Referenced by initGOPRateControl(), main(), SUMA_CreateTable(), SUMA_Householder(), and SUMA_Surface_Curvature(). |
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Definition at line 113 of file rate.c. Referenced by initGOPRateControl(). |
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Definition at line 111 of file rate.c. Referenced by initGOPRateControl(), SUMA_AssignTriBranch(), SUMA_Dijkstra(), and SUMA_IntersectionStrip(). |
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Definition at line 82 of file rate.c. Referenced by initRateControl(). |
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Definition at line 120 of file rate.c. Referenced by initRateControl(). |
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Definition at line 133 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 118 of file rate.c. Referenced by initRateControl(). |
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Definition at line 147 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 132 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 122 of file rate.c. Referenced by initRateControl(). |
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Definition at line 121 of file rate.c. Referenced by initRateControl(). |
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Definition at line 123 of file rate.c. Referenced by initRateControl(). |
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Definition at line 119 of file rate.c. Referenced by initRateControl(). |
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Definition at line 149 of file rate.c. Referenced by initRateControl(). |
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Definition at line 101 of file rate.c. Referenced by SUMA_AddNodeIndexColumn(). |
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Definition at line 89 of file rate.c. Referenced by initRateControl(). |
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Definition at line 88 of file rate.c. Referenced by initRateControl(). |
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Definition at line 94 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 94 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
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Definition at line 94 of file rate.c. Referenced by initGOPRateControl(), and initRateControl(). |
